<template>
  <div>
    <!-- 面包屑区域 -->
    <el-breadcrumb separator=">">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="7">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="dialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>

      <el-table :data="userlist" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>

        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch @change="userStateChange(scope.row)" v-model="scope.row.mg_state"></el-switch>
          </template>
        </el-table-column>

        <el-table-column label="操作">
          <template slot-scope="scope">
            <el-button size="mini" type="primary" icon="el-icon-edit" @click="showEditDialog(scope.row.id)"></el-button>

            <el-tooltip :enterable="false" effect="dark" content="删除角色" placement="top">
              <el-button size="mini" type="danger" icon="el-icon-delete"
                         @click="removeUserById(scope.row.id)"></el-button>
            </el-tooltip>

            <el-tooltip :enterable="false" effect="dark" content="分配角色" placement="top">
              <el-button size="mini" type="warning" icon="el-icon-setting" @click="setRole(scope.row)"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页功能-->
      <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange"
                     :current-page="queryInfo.pagenum" :page-sizes="[1, 2, 5, 10]" :page-size="queryInfo.pagesize"
                     layout="total, sizes, prev, pager, next, jumper" :total="total">
      </el-pagination>
    </el-card>
    <!-- 添加用户对话框 -->
    <el-dialog title="添加用户" :visible.sync="dialogVisible" width="50%" @close="addDialogClose">
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password" type="password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="dialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 编辑用户对话框 -->
    <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClose">
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>

      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>

    <!--  分配角色-->
    <el-dialog title="分配角色" :visible.sync="setRoletDialogVisible" width="50%">
      <div>
        <p>当前用户：{{ roleInfo.username }}</p>
        <p>当前角色：{{ roleInfo.role_name }}</p>
        <el-select v-model="selectedRoleId">
          <el-option v-for="item in rolesList" :key="item.id"
                     :label="item.roleName"
                     :value="item.id"
          ></el-option>
        </el-select>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoletDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>
<script>
export default {
  data() {
    var validatorPhone = function(rule, value, callback) {
      if (value === '') {
        callback(new Error('手机号不能为空'))
      } else if (!/^1\d{10}$/.test(value)) {
        callback(new Error('手机号格式错误'))
      } else {
        callback()
      }
    }
    return {
      //获取用户列表的对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      userlist: [],
      total: 0,
      //对话框可见性
      dialogVisible: false,
      //控制修改用户的对话框
      editDialogVisible: false,
      //分配角色对话框可见
      setRoletDialogVisible: false,
      //添加用户表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      //所有角色列表
      rolesList: [],
      //被选中的角色ID
      selectedRoleId:[],
      // 新增用户的表单校验
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '用户名长度在3～10个字符之间',
            trigger: 'blur'
          }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          {
            min: 6,
            max: 15,
            message: '长度在 6 到 15 个字符',
            trigger: 'blur'
          }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { type: 'email', message: '请输入正确的邮箱', trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号！', trigger: 'blur' },
          { required: true, validator: validatorPhone, trigger: 'blur' }
        ]
      },
      editFormRules: {
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { type: 'email', message: '请输入正确的邮箱', trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号！', trigger: 'blur' },
          { required: true, validator: validatorPhone, trigger: 'blur' }
        ]
      },
      //根据ID查询的用户信息
      editForm: {},
      //被分配角色的用户信息
      roleInfo: {}
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    //分配角色网络请求
    async saveRoleInfo(){
      if(!this.selectedRoleId){
        return this.$message.error('请选择要分配的角色！')
      }
      const { data: re } = await this.$http.put(`users/${this.roleInfo.id}/role`,{
        rid: this.selectedRoleId
      })

      if (re.meta.status !== 200) {
        return this.$message.error(re.meta.msg)
      }
      this.$message.success("更新角色成功！")
      this.getUserList()
      this.setRoletDialogVisible  = false
    },
    //分配角色对话框展示
    async setRole(role) {
      this.roleInfo = role
      // 获取所有角色
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error(res.meta.msg)
      }
      this.rolesList = res.data
      this.setRoletDialogVisible = true
    },
    //删除用户
    async removeUserById(id) {
      //询问是否删除
      const res = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(error => error)
      //如果取消 返回 cancel
      //如果确定 返回 confirm
      if (res !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      //删除用户的网络请求
      const { data: re } = await this.$http.delete('users/' + id)

      if (re.meta.status !== 200) {
        return this.$message.error(re.meta.msg)
      }
      this.$message.success('删除用户成功！')
      this.getUserList()
    },
    //修改用户网络请求
    editUserInfo() {
      this.$refs.editFormRef.validate(async (valid) => {
        if (!valid) return
        const { data: res } = await this.$http.put('users/' + this.editForm.id, {
          email: this.editForm.email,
          mobile: this.editForm.mobile
        })
        console.log(res)
        if (res.meta.status !== 200) {
          return this.$message.error('更新用户失败！')
        }
        //关闭对话框
        this.editDialogVisible = false
        //刷新列表
        this.getUserList()
        //提示
        this.$message.success('更新用户成功！')
      })
    },
    //编辑用户的对话框
    async showEditDialog(id) {
      //发起网络请求
      const { data: res } = await this.$http.get('users/' + id)

      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败！')
      }
      this.editForm = res.data
      this.editDialogVisible = true
    },
    //新增对话框关闭事件
    addDialogClose() {
      this.$refs.addFormRef.resetFields()
    },
    //编辑对话框关闭事件
    editDialogClose() {
      this.$refs.editFormRef.resetFields()
    },
    async getUserList() {
      const { data: res } = await this.$http.get('users', {
        params: this.queryInfo
      })

      if (res.meta.status !== 200) {
        return this.$message.error('获取用户列表失败！')
      }
      this.userlist = res.data.users
      this.total = res.data.total
    },
    //页面大小变化事件
    handleSizeChange(size) {
      this.queryInfo.pagesize = size
      this.getUserList()
    },
    //当前页改变事件
    handleCurrentChange(newpage) {
      this.queryInfo.pagenum = newpage
      this.getUserList()
    },
    //监听用户状态改变
    async userStateChange(e) {
      const { data: res } = await this.$http.put(
        `users/${e.id}/state/${e.mg_state}`
      )
      if (res.meta.status != 200) {
        e.mg_state = !e.mg_state
        return this.$message.error('更新用户状态失败！')
      }
      this.$message.success('更新用户状态成功！')
    },
    //添加用户事件
    addUser() {
      //表单验证
      this.$refs.addFormRef.validate(async (valid) => {
        if (!valid) return
        //发起添加用户的请求
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) {
          this.$message.error('添加用户失败！')
        }
        this.$message.success('添加用户成功！')
        this.dialogVisible = false
        this.getUserList()
      })
    }
  }
}
</script>
<style lang="less" scoped>
</style>